mount
chassis. It was designed to operate reliably in a utility or
industrial environment where power surges and
transients are a concern. In the event of loss of AC input
the ACDC will automatically switch to your DC source in
ZERO time. The ACDC can be factory set for AC or DC
primary input operation mode. The ACDC Inverter
continuously conditions the incoming power, providing a
high quality sine wave output with very little distortion.

The ACDC Inverter has all the features our customers
have come to expect from Behlman; a clean regulated
sine wave output with excellent line and load regulation,
high efficiency and low harmonic distortion in a compact
enclosure. The ACDC Inverter contains a unique
overload protection system that folds back the voltage to
maintain maximum rated current without distorting the
output waveform. The unit has LED indicators on the
front panel and status and alarm contacts on the rear.
These contacts can be utilized by a Supervisory Control
And Data Acquisition (SCADA) system. In the event of
an inverter failure the unit has an automatic bypass that
switches in zero time to ensure that the output power is
maintained

The ACDC Inverter is ideal for use in substations and
utilities where sensitive station electronics require clean,
surge protected and regulated AC.


INPUT
Voltage:
AC: 120VAC +/- 10%, single-phase, 47-63 Hz
DC: 48 VDC +/- 20% or 125 VDC +/- 20%
Maximum DC burden (full load):
40 amps DC @ 38 VDC
15 amps DC @ 100 VDC

OUTPUT
Power: 1200 VA
Voltage: 120 VAC +/- 5%, 60 Hz, isolated
Current: 10 Amps
Crest Factor: 3:1
Power Factor: 100% of rated output into any
power factor load
Distortion: Less
than
3%
THD
typical


Line Regulation: +/- 0.3% for +/- 10% line change
Load Regulation: +/- 1.0%, no load to full load
Efficiency:
80%
typical
Switch-over time: Zero, AC-DC, or DC-AC




PROTECTIVE CIRCUITS
Input: Main circuit breaker

Constant Current: Overload automatically causes voltage
fold-back
to
provide
maximum
current

without
distorting
output
waveform
Short Circuit: Short circuit overload electronically
latches
output
open
to
protect
load...


power
restored
by
cycling
input
power
Thermal:

Internal temperature sensor shuts off
output to prevents heat damage
Bypass:
If unit fails, the AC input will be routed to
the output


CONTROLS / INDICATORS
Power On/Off:

Circuit
breaker

Indicators:
AC present, DC present, AC output

and
System
OK
Bypass Fuse: 15
Amps

ALARM CONTACTS
Contact closures: AC IN, DC IN, AC OUT, SYS OK
Contact rating:

0.6 Amps @ 125 VAC; 0.8 Amps @
110 VDC; 2 Amps @ 30 VDC

ACDC_SS.003 AUG 1, 2005


MECHANICAL & ENVIRONMENTAL
Dimensions:
High-strength rack-mount chassis
19W X 5.25H X 19D
(48.3 cm X 13.3 cm X 48.3 cm)
Weight: 65
lbs
(29.5kgs)

Input Connections: Barrier strip on rear
Output Connections:
Four NEMA 5-15 receptacles

on rear
Alarms Connections : Barrier
strip
on
rear




Operating Temperature: -4° to 131° F (-20° to 55° C)
Humidity:
Up
to
95%
non-condensing
SWC: Designed
to
meet
IEEE
C37.90.1
Fast transient:
Designed
to
meet
IEEE
C37.90.1
EMI:
Designed for immunity to conducted
& radiated EMI
RFI:
Designed to meet IEEE C37.90.2-
1997

OPTIONS:
Contact factory for additional options


D1: DC preferred. In the event the DC voltage
goes below an acceptable value the input
will switch to AC
TB: Barrier strip on rear in place of NEMA 5-15 receptacles







Alarm Outputs



Output

NEMA 5-15
Receptacles



AC Input





DC Input



MODEL SELECTION GUIDE

ACDC-1200-125-D1

DC Inputs
DC preferred